OpenTechnical

OT-2026-000042678

Publication integrity record

Two pad foam vacuum gripper, two outlet manifold, common isolation valve, single stage ejector, sustained blow-off after set-down, on a tool changer

This page is the evidence record. It changes as evidence arrives: a trusted timestamp, an independent retrieval, a custody deposit. The disclosure itself (/p/OT-2026-000042678) never changes.

Identity and time

Publication numberOT-2026-000042678 · never reused
Internal UUID01a0ae7a-c0cf-701f-a2bc-cb5a682fd4de · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:27:55.489038Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000042678
StatusPUBLIC

Content hashes

Canonical textc7f38bf9898e6cc21fbba71de63400358c4e444d4a1fb71c62cfcd190edcbd4b
Markdowncb128f65b2e447bded0e817c4b89cf8928430e56559db35e663fe5c229f052d1
PDF
Publication page7dc0cff21336ee40d6ff1d64ed7bb9aa587366d2bd65e0e231354dd65b3ede89
Manifestc948c7848bf95e6b2ee2dbdcc7707eb89ebbe6655968ad5c09beb438119630a9

SHA-256, lowercase hex, over the exact bytes of each published file. Every figure is hashed individually in the manifest.

Manifest signature

AlgorithmEd25519 · key OT-SIGN-2026-01 · Verified
SignatureNUhlY98G2wAdiqnsSJ9BN9xHlfyofs5OlawoY9uVAhtLp3R3GJlbRvsaT+M9GhNxRMuPFfJo+7vpETzKWzmCAg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:15:01.806084ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042678
observed 7dc0cff21336ee40d6ff1d64ed7bb9aa...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:01.782293ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042678/manifest.json
observed c948c7848bf95e6b2ee2dbdcc7707eb8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:01.758652ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042678/publication.md
observed cb128f65b2e447bded0e817c4b89cf89...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:01.739056ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042678/publication.txt
observed c7f38bf9898e6cc21fbba71de6340035...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139

Requested from infrastructure separate from the publication system, over the public internet, with no credential. A MATCH means an ordinary internet client could fetch the publication and received exactly the bytes recorded above.

Independent archive

External archivePending Canonical URLs are submitted to an independent archive in batches.

A capture held by an outside archive is evidence that does not depend on OpenTechnical continuing to exist. It supplements the records above; it does not replace them.

Third-party custody

Custody packagePending Custody packages are produced weekly.